https://mathup.ca/Games/Grade4/UChef3000
https://mathup.ca/Games/Grade4/MultiplyDivideMatch
https://mathup.ca/Games/Grade4/XMarkstheSpot
https://mathup.ca/Games/Grade5/PenguinPlunge
Printable flashcards to practice multiplication:
https://www.multiplication.com/sites/default/files/files/BWFlashcards0-12.pdf